Cynomolgus monkeys (Macaca fascicularis) experimentally infected with B19V and hepatitis A virus: no evidence of the co-infection as a cause of acute liver failure



Título del documento: Cynomolgus monkeys (Macaca fascicularis) experimentally infected with B19V and hepatitis A virus: no evidence of the co-infection as a cause of acute liver failure
Revue: Memorias do Instituto Oswaldo Cruz
Base de datos: PERIÓDICA
Número de sistema: 000400706
ISSN: 0074-0276
Autores: 1
2
1
3
4
5
3
3
5
1
Instituciones: 1Fundacao Oswaldo Cruz, Instituto Oswaldo Cruz, Rio de Janeiro. Brasil
2Fundacao Oswaldo Cruz, Bio-Manguinhos, Rio de Janeiro. Brasil
3Universidade Federal Fluminense, Instituto Biomedico, Niteroi, Rio de Janeiro. Brasil
4Universidade Federal do Estado do Rio de Janeiro, Escola de Medicina e Cirurgia, Rio de Janeiro. Brasil
5Health Protection Agency, Virus Reference Department, Londres. Reino Unido
Año:
Periodo: Abr
Volumen: 111
Número: 4
Paginación: 258-266
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés This study was conducted to analyse the course and the outcome of the liver disease in the co-infected animals in order to evaluate a possible synergic effect of human parvovirus B19 (B19V) and hepatitis A virus (HAV) co-infection. Nine adult cynomolgus monkeys were inoculated with serum obtained from a fatal case of B19V infection and/or a faecal suspension of acute HAV. The presence of specific antibodies to HAV and B19V, liver enzyme levels, viraemia, haematological changes, and necroinflammatory liver lesions were used for monitoring the infections. Seroconversion was confirmed in all infected groups. A similar pattern of B19V infection to human disease was observed, which was characterised by high and persistent viraemia in association with reticulocytopenia and mild to moderate anaemia during the period of investigation (59 days). Additionally, the intranuclear inclusion bodies were observed in pro-erythroblast cell from an infected cynomolgus and B19V Ag in hepatocytes. The erythroid hypoplasia and decrease in lymphocyte counts were more evident in the co-infected group. The present results demonstrated, for the first time, the susceptibility of cynomolgus to B19V infection, but it did not show a worsening of liver histopathology in the co-infected group
Disciplinas: Medicina
Palabras clave: Medicina experimental,
Microbiología,
Infección experimental,
Parvovirus humano B19,
Virus de la hepatitis A,
Coinfecciones,
Falla hepática aguda,
Macaca fascicularis
Keyword: Medicine,
Experimental medicine,
Microbiology,
Experimental infection,
Human parvovirus B19,
Hepatitis A virus,
Coinfections,
Acute liver failure,
Macaca fascicularis
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